package cur.nature.framework.mvc;

import cur.nature.framework.core.log.LOG;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.stereotype.Component;


@Component
public class SpringBeanUtil implements ApplicationContextAware, DisposableBean {
    private static ApplicationContext applicationContext = null;

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        LOG.info("启动微服务---------------------------------------------------------------------");
        if(SpringBeanUtil.applicationContext == null){
            SpringBeanUtil.applicationContext  = applicationContext;
        }
    }

    //获取applicationContext
    public static ApplicationContext getApplicationContext() {
        return applicationContext;
    }

    //通过name获取 Bean.
    public static Object getBean(String name){
        return getApplicationContext().getBean(name);
    }

    //通过class获取Bean.
    public static <T> T getBean(Class<T> clazz){
        return getApplicationContext().getBean(clazz);
    }

    //通过class获取Bean.
    public static <T> T init(Class<T> clazz){
        return applicationContext.getBean(clazz);
    }

    //通过name,以及Clazz返回指定的Bean
    public static <T> T getBean(String name,Class<T> clazz){
        return getApplicationContext().getBean(name, clazz);
    }


    @Override
    public void destroy() throws Exception {
        LOG.info("关闭微服务---------------------------------------------------------------------");
        ((ConfigurableApplicationContext) getApplicationContext()).close();
        applicationContext = null;
    }
}
